If Find My iPhone is enabled on your missing device
You can use Find My iPhone to find your device and take additional actions that can help you recover it and keep your data safe.
Sign in to icloud.com/find on a Mac or PC, or use the Find My iPhone app on another iPhone, iPad, or iPod touch.
Find your device. Open Find My iPhone, and select a device to view its location on a map. If the device is nearby, you can have it play a sound to help you or someone nearby find it.
Turn on Lost Mode. Using Lost Mode, you can remotely lock your device with a four-digit passcode, display a custom message with your phone number on your missing device's Lock screen, and keep track of your device's location. If you added credit or debit cards to Apple Pay, the ability to make payments using Apple Pay on the device will be suspended when you put your device in Lost Mode.